Assistant Commissioner Mark Murdoch, central metropolitan region commander, urged people coming to the city centre to drink responsibly and "take personal accountability for their actions" - or face the consequences.

"If you come to the attention of police, zero tolerance will be exercised, in terms of alcohol-related violence," he said.

"You'll end up in a jail cell or at the very best in a sobering up cell where you will walk out with a $200 fine for your trouble."

The heat of summer coincides with a spike in alcohol-related crime in the city.

Mr Murdoch said police wanted to stop people who come into the city to enjoy themselves being "interfered with by morons who drink to excess".